Locomotive-bearing.



J. E. WEBSTER.

LOGOMOTIVE BEARING.

APPLIGATION FILED JUNE 20, 1910.

Patented Deg. 2, 1913.

' Big. 1'.

LOCOMOTIVEBEARIN G.

Specification of Letters Patent.

Patented Dec. 2,1913.

Applicationfiled J'une 20, 1910. Serial No. 567,908.

To all whom it may concern:

Be it known that I, JOHN E. WEBsTER, a citizen of the United .States, and a resident of Pittsburgh, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement :in Locomotive-Bearings, of which the following is a specification.

My invention relates to electric locomotives and other vehicles which are propelled by electric motors and it has special reference to such vehicles as are adapted to haul heavy loads at very high speeds.

The object of my invention is to provide an improved journal box or bearing structure for electric locomotives and other railway vehicles which shall .be simple and durable and be specially adapted for use with locomotives having relatively low centers of gravity.

In electric locomotives having motors of large size suspended driving wheels, with their armatures concentric with the wheel axles or with their armature axes in substantially the same plane as the axle axes, the center of gravity of the locomotive is relatively low, which is generally regarded as disadvantageous on that the various movements of the body and frame of the locomotive, in operation, are apt to produce heavy strains in the rails and wheel flanges instead of being absorbed by the carrying springs, as is the case if the center of gravity is high. It is evident that it is not the absolute height of the center of gravity, but the height of the center of gravity above the point, or points, at which the side thrust is transmitted from the frame to the wheel axle that is important. The points in question usually lie in a horizontal plane through the center of the wheel axle, since the guide ways which hold the journal boxes in the side frames of the locomotive are tapered slightly from this plane outwardly in both directions.

According to my present invention, I taper the guide ways from a point near the bottom of the journal boxes and thereby materially lower the point where the end thrusts, due to swinging of the locomotive frame, are applied to the journal boxes.

Figure l, of the accompanying drawings, is a partially sectional elevation of an electric locomotive embodying my invention,

between the p op l ng channels 10 to the pedestal legs 11, and the grooves or channels 10 in the body 9 are of such form and dimensions as to fit the shoes closely at their lower ends but have diverging side walls that permit of considerable lateral movement of the pedestals and shoes in the upper portions of t e grooves or channels. The lateral movements of the side frame with reference to the journal boxes are rotative in character because the said frames are held in contact with the journal boxes at their lower edges, the said movements being absorbed by the usual side springs (not shown) of the locomotive.

By the means which I have devised, it is possible to obtain an increase of about a foot in the distance between the center of gravity and the point in the side frames where the end thrust is transmitted to the boxes.

Structural modifications may, of course, be effected within the spirit and scope of my invention.

I claim as my invention:

1. In a railway vehicle, with side frames having U and wheel axles, supported in the the combination shaped pedestals, of a journal box adjustably pedestal and having lateral holding the journal box in position, said projections ment with the pedestal legs at their lower ends and gradually diverging therefrom.

2. In a railway vehicle, the combination with side frames having a plurality of pedestals to receive journal boxes and wheel axles, of journal boxes adjustably supported being in engagein the pedestals of the side frames and hav- I ing guide projections forming taper guide ways which fit the pedestal legs closely at their narrowest point, near the bottoms of the boxes.

3. In a railway vehicle, the combination with a body having notched side frames and cross ties and wheel axles, of journal boxes mounted on the axles and adjustably supported in the notches of the side frames, said journal boxes being provided with lateral projections beveled to form tapered guide ways which are narrowest at the bottoms of the boxes.

4:. A journal box for electrical vehicles having lateral projections which are beveled to form tapered guide ways which are narrowest near the bottom of the box.

5. In a railway vehicle, the combination with side frames having pedestals and binders therefor, of journal boxes having lateral projections forming taper guide ways to receive the pedestal legs and interposed spacing shoes, said guide ways being narrowest and in engagement with the shoes at the bottoms of the boxes.

6. A railway vehicle, comprising wheel obtained for five cents each,

side frames and journal boxes emframe-restraining means acting materially below the axle centers, said side frames being otherwise free to move laterally within considerable limits.

7 A railway vehicle comprising wheel axles, a frame structure and journal boxes embodying unyielding frame-restraining projections that engage the same materially below the centers of the wheel axles, said frame structure being otherwise free 'to move laterally within considerable limits.

8. A railway vehicle comprising wheel axles, side frames and unyielding frame-restraining means located and acting materially below the axle centers to prevent sidewise movement, said frames being otherwise free from restraint against such movement, within considerable limits. 7

In testimony whereof, I have hereunto subscribed my name this 18th day of June, 1910.

axles, bodying unyielding JOHN E. WEBSTER.

Witnesses:

It. J. DEARBORN, B. B. HINES.

by addressing the Commissioner of Patents.

Washington, D. 0. 

